Flash Undersink Reverse Osmosis Water Filter

• How to Install the Flash Undersink Reverse Osmosis System

  The Flash Undersink Reverse Osmosis System is designed for straightforward DIY installation. Most homeowners complete it in about 30–60 minutes. No plumber needed. Here is what to expect. Installation Video Watch the full installation walkthrough before getting started: What Is Included Flash...

• I hear water going into the drain even if no one used the filtered water in a while

  It's possible that the water pressure variation from the well pump or municipality caused the system to go into production mode. Or if you have an ice maker in the fridge, it might have been making some ice and using the water. Otherwise, it might indicate a possible leak of filtered water. Plea...

• There are a lot of air bubbles within the filtered water. Is it normal?

  It is normal to have bubbles when the filters are new. The carbon is very porous and releases air/bubbles. Depending on usage, the bubbles within the filtered water will go away over time.

• When Should I Replace My Flash Undersink RO Filters?

  The Flash Undersink Reverse Osmosis System uses a multi-stage filtration process. Replacing filters on schedule keeps your water clean and your system running at full flow. Here is what to replace and when: Every 6–12 Months Pre-Filter (Sediment + Carbon) — Traps sediment, chlorine, and other p...